FSA Rear Hub Bearing Steel SC40/55 Rear Disc NDS

FSA Rear Hub Bearing Steel SC40/55 Rear Disc NDS. FSA hub bearings are engineered for high-performance road and MTB applications featuring configurations with 2 4 or 6 bearings per hub depending on the model. These include both steel and ceramic cartridge bearings optimized for smooth rolling durability and weather resistance.